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arXiv 2005.13497math.OCmath.AP
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包含弹性结构特征值的形状和拓扑Optimization:多相场方法

Shape and Topology Optimization involving the eigenvalues of an elastic structure: A multi-phase-field approach

Harald Garcke, Paul Hüttl, Patrik Knopf

摘要:

优化了一个包含弹性结构特征值的代价泛函,该代价泛函由多相场方程描述。这使我们能够处理拓扑变化和多种材料。我们证明了特征值的连续性和可微性,并建立了我们的最优化问题的全局极小值的存在性。我们进一步得到局部极小的一阶必要最优性条件。此外,还讨论了特征值优化与柔度优化相结合的最优化问题。

英文摘要:

A cost functional involving the eigenvalues of an elastic structure, that is described by a multi-phase-field equation, is optimized. This allows us to handle topology changes and multiple materials. We prove continuity and differentiability of the eigenvalues and we establish the existence of a global minimizer to our optimization problem. We further derive first-order necessary optimality conditions for local minimizers. Moreover, an optimization problem combining eigenvalue and compliance optimization is also discussed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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